Year	U.S. dollars (Billions)
1992	-1.485
1993	-0.445
1994	-0.910
1995	-0.213
1996	-0.751
1997	-0.799
1998	-1.225
1999	-0.171
2000	0.366
2001	-1.390
2002	-1.024
2003	-0.273
2004	0.335
2005	0.359
2006	-0.823
2007	-4.767
2008	1.287
2009	-0.134
2010	2.678
2011	14.068
2012	2.629
2013	4.527
2014	-2.853
2015	-9.979
2016	-6.965
2017	-3.426
2018	-1.766
2019	-7.028
2020	-10.960
2021	-2.672
2022	7.079
2023	-9.804
2024	-13.291
2025	-8.372
2026	-10.473
2027	-11.581
2028	-14.694
2029	-16.755